EP 1494203 A2 20050105 - Driving of data lines used in a control circuit of a display device
Title (en)
Driving of data lines used in a control circuit of a display device
Title (de)
Ansteuerung der Signalleitungen für Anzeigegerät
Title (fr)
Activation des lignes de données d'un dispositif d'affichage
Publication
Application
Priority
- EP 02255398 A 20020801
- JP 2001235387 A 20010802
- JP 2001368399 A 20011203
Abstract (en)
The display matrix section 200 has pixel circuits 210 arranged in the form of a matrix, a plurality of gate lines Y1, Y2 ... that extend in the row direction, and a plurality of data lines X1, X2 ... that extend in the column direction. The scan lines are connected to a gate driver 300, and the data lines are connected to a data line driver 400. A pre-charging circuit 600 or additional current generation circuit is installed for each data line as means for accelerating the charging or discharging of the data line. For each data line, charging or discharging is accelerated by pre-charging or current addition prior to the completion of the setting of the light emission level in the corresponding pixel circuit 210. A judgment circuit is provided, which judges the need to use the acceleration feature based on the amount of variation in current which will be caused by the variation in the data signal on the data lines.
IPC 1-7
IPC 8 full level
G09G 3/20 (2006.01); G09G 3/30 (2006.01); G09G 3/32 (2006.01); H01L 51/50 (2006.01); G09G 3/36 (2006.01)
CPC (source: EP KR US)
G09G 3/30 (2013.01 - KR); G09G 3/325 (2013.01 - EP US); G09G 3/3275 (2013.01 - EP US); G09G 3/3283 (2013.01 - EP US); G09G 2300/0842 (2013.01 - EP US); G09G 2300/0861 (2013.01 - EP US); G09G 2310/0248 (2013.01 - EP US); G09G 2310/027 (2013.01 - EP US); G09G 2320/0223 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1282104 A1 20030205; EP 1282104 B1 20070314; CN 1230795 C 20051207; CN 1427385 A 20030702; DE 60218788 D1 20070426; DE 60218788 T2 20071206; EP 1494203 A2 20050105; EP 1494203 A3 20070718; JP 2003114645 A 20030418; JP 3951687 B2 20070801; KR 100512049 B1 20050831; KR 100553860 B1 20060224; KR 20030013273 A 20030214; KR 20050059011 A 20050617; TW I221598 B 20041001; US 2003030602 A1 20030213; US 2006114192 A1 20060601; US 2009079677 A1 20090326; US 6989826 B2 20060124; US 7466311 B2 20081216
DOCDB simple family (application)
EP 02255398 A 20020801; CN 02127346 A 20020801; DE 60218788 T 20020801; EP 04077476 A 20020801; JP 2001368399 A 20011203; KR 20020045273 A 20020731; KR 20050035075 A 20050427; TW 91117196 A 20020731; US 20709102 A 20020730; US 27296805 A 20051115; US 29203308 A 20081110